JP6506006B2 - Non-adhesive packaging container and method of manufacturing non-adhesive packaging container - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a non-adhesive packaging container used for an article used in an environment in which food containing water or sugar and which contains water or in which water droplets or the like may be attached, and a method of manufacturing the same.

  Conventionally, when a food or a product containing water or a product containing water is sealed or placed in a container or the like for packaging the food or the like, the food or the product is attached to the package container and the portion in contact with them. There is a problem that it adheres. In order to give them non-adhesion, the plastic sheet is embossed or a film with many capillaries on the surface like non-woven fabric is used to reduce the contact area with the article and reduce adhesion What makes it hard to adhere by coating things, a mold release oil, a silicone resin, etc. is devised. In the case of an article used in an environment where water droplets may adhere, the surface may be treated with silicone, a release agent, a silicone resin or fluorine to suppress or prevent the adhesion of water droplets to these. A coating of resin or the like has been devised.

  Patent Document 1 discloses a food package in which the emboss film can be used to further suppress the shape loss, peeling, and peeling of the package by making the product into an air-filled state. The package is still attached to the tray on the lower surface of the package. Patent Document 2 discloses a release film having a continuous layer mainly composed of silicon oxide as a release layer by plasma-enhanced chemical vapor deposition, but deposition processing on the film is essential, and another process is disclosed. Become. Although Patent Document 3 discloses a packaging material having water repellency and releasability of the contents having a resin layer to which spherical silicon is added as the innermost layer, the innermost layer is prepared by mixing spherical silicon with a polyethylene resin, It is a coextruded film, and the thickness of the layer is as thick as 40 to 60 μm. Although the mold release film which coated the silicone resin which contained silicone type fine powder on the plastic film is disclosed in patent document 4, silicone type fine powder aggregates and uniform dispersibility is not obtained. Problems such as unstable exposure of silicone to the surface, large amount of organic solvent, and high temperature of the substrate when curing the release agent, resulting in generation of pinholes etc. .

Unexamined-Japanese-Patent No. 2007-308191 JP-A-8-164969 JP-A-8-337267 Japanese Examined Patent Publication 6-2393

  Therefore, the present invention does not require steps such as embossing and deposition for imparting non-adhesiveness, and even if the non-adhesive layer is thin, it has sufficient water repellency and non-adhesiveness, and is easy at low cost It is an object of the present invention to provide a non-adhesive packaging container that can be manufactured.

  The present inventors have a non-adhesive laminate comprising an anchor coat layer containing an unevenness imparting agent on at least one side of a thermoplastic resin layer and a non-adherent layer containing hydrophobicized inorganic particles laminated in this order. By making it an adhesive packaging container, it discovers that the said objective can be achieved, and came to complete this invention.

That is, the present invention
(1) A non-adhesive packaging container comprising a non-adhesive laminate in which an anchor coat layer and a non-adhesive layer are laminated in this order on at least one side of a thermoplastic resin layer comprising a film or sheet and a laminate thereof In the manufacturing method,
The anchor coat layer is coated with an anchor coat agent containing acrylic resin beads and one selected from acrylic resins or polyester resins having a glass transition point (Tg) of 5 ° C. or more and 50 ° C. or less. Layers formed by
The non-adhesive layer is a layer formed by applying a coating liquid containing hydrophobized inorganic particles and alcohol and / or water,
The thermoplastic resin layer comprising the film or sheet and a laminate thereof is a polyester resin, a polyolefin resin, a polystyrene resin, a polyamide resin, a polycarbonate resin, a polyacrylonitrile resin, a polyimide resin, a polyvinyl chloride resin, a polyvinylidene chloride resin, polyvinyl alcohol resins, ethylene-vinyl alcohol resin is at least one selected from among polyurethane resin,
Forming an anchor coat layer;
The step of forming a non-adhesion layer is a step of forming in this order ,
And the said process of forming the said anchor coat layer is a coating process by gravure using one unit of a multicolor gravure printer,
The process is non-adherent packaging container manufacturing method, wherein said is another coating step by gravure printing using the one unit of multi-color gravure printing machine for forming the non-adherent layer,
(2) The hydrophobized inorganic particles are at least one selected from those obtained by hydrophobizing silica, talc, sericite, mica, kaolin, or a mixture thereof (1) A method of producing the non-adhesive packaging container according to
( 3 ) The thermoplastic resin layer comprising the film or sheet and a laminate thereof is at least one selected from a polypropylene resin and a polystyrene resin, described in (1) or ( 2 ). Of non-adhesive packaging containers,
It is.

  According to the present invention, steps such as embossing and deposition for imparting non-adhesion are unnecessary, and even if the non-adhesion layer is thin, it has sufficient water repellency and non-adhesion, and is easy at low cost A non-adhesive laminate comprising a non-adhesive laminate in which an anchor coat layer containing an unevenness imparting agent and a non-adhesive layer containing hydrophobized inorganic particles can be produced on at least one side of a thermoplastic resin layer in this order. It is possible to provide a method of manufacturing a packaging container and a non-adhesive packaging container.

It is a schematic sectional drawing which shows the example about the non-adhering packaging container of this invention. It is a schematic sectional drawing which shows the example about the non-adhering packaging container of this invention. It is a schematic sectional drawing which shows the example about the non-adhering packaging container of this invention.

  Hereinafter, modes for carrying out the present invention will be described in detail. The present embodiment is only one mode for carrying out the present invention, and the present invention is not limited to the present embodiment, and various modifications and embodiments can be made without departing from the scope of the present invention. Is possible.

  The non-adhesive packaging container of the present invention is a non-adhesive laminate in which an anchor coat layer containing an unevenness imparting agent and a non-adhesive layer containing hydrophobized inorganic particles are laminated in this order on at least one surface of a thermoplastic resin layer. It is preferred to include the body.

  The thermoplastic resin layer is made of polyester resin, polyolefin resin, polystyrene resin, polyamide resin, polycarbonate resin, polyacrylonitrile resin, polyimide resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl alcohol resin, ethylene vinyl alcohol resin, polyurethane resin It is preferable that it is a film or sheet containing at least one chosen from these, and these laminated bodies.

  By forming an anchor coat layer containing the above-mentioned concavo-convex imparting agent, a concavo-convex layer is provided, which not only contributes to the improvement of the adhesion between the thermoplastic resin layer and the nonadherent layer, but also on the provided concavo-convex layer. Furthermore, the non-adhesive layer has a great effect on non-adhesiveness by being laminated. The anchor coat layer is preferably formed of an anchor coat agent having a coating ability containing an unevenness imparting agent.

  The said unevenness imparting agent is titanium oxide, calcium carbonate, barium sulfate, talc, zinc oxide, silica, mica, montmorillonite, smectite, zeolite, inorganic pigments such as kaolinite, polyethylene, polypropylene, microcrystalline, carnauba, polytetrafluoroethylene It is preferable that it is at least one selected from waxes such as, urethane resins, acrylic resins, nitrile resins, resins such as polystyrene resins, or mixtures thereof.

  Furthermore, it is preferable that the said concavo-convex imparting agent is powdery or bead-like. Although resin beads are particularly preferable, any resin beads may be used as long as they can be mixed as an anchor coating agent and can maintain fluidity.

  The average particle diameter of the unevenness imparting agent is preferably larger than 0.1 μm, more preferably in the range of 0.3 to 50 μm, and further preferably in the range of 0.8 to 30 μm. preferable. When the particle size is 0.1 μm or less, the water repellency is difficult to be expressed, and when it is larger than 50 μm, the coating suitability is poor.

  The anchor coating agent preferably contains a resin and a roughening agent. The content ratio of the resin and the unevenness imparting agent is preferably 10/90 to 99.9 / 0.1 in the weight ratio of the resin / the unevenness imparting agent. If the amount of the resin is less than 10, the adhesion to the substrate layer is poor, and if the amount of the unevenness imparting agent is less than 0.1, the water repellence is hardly expressed.

  The anchor coat layer formed by applying the anchor coat agent containing the said resin and an uneven | corrugated imparting agent becomes uneven | corrugated shape in the cross section. By being uneven, good water repellency and non-adhesion can be obtained.

  The resin may be any resin as long as good adhesiveness can be obtained. For example, shellacs, rosins, rosin modified maleic resin, rosin modified phenolic resin, cotton nitrate, cotton acetate, cellulose acetate, cellulose acetyl propionate, cellulose Acetyl butyrate, chlorinated rubber, cyclized rubber, vinyl chloride, vinylidene chloride, polyamide resin, vinyl chloride-vinyl acetate copolymer, polyester resin, ketone resin, butyral resin, chlorinated polypropylene resin, chlorinated polyethylene resin, chlorinated Thermoplastic resins such as ethylene vinyl acetate resin, ethylene vinyl acetate resin, acrylic resin, urethane resin, ethylene-vinyl alcohol resin, styrene maleic acid resin, casein, alkyd resin, etc. may be mentioned, and one or more of these may be used in combination It may be use. Properties of these resins dissolved in a solvent, dissolved in water, or dispersed in water, such as acrylic emulsion, urethane emulsion, polyvinyl alcohol resin, ethylene-vinyl alcohol emulsion, polypropylene emulsion, etc. Can be mentioned.

  The anchor coating agent preferably further contains a solvent, and the resin is dissolved or dispersed in the solvent.

  The solvent may be an organic solvent type or an aqueous type generally used in gravure printing. For example, organic solvents and / or water can be mentioned. Examples of the organic solvent include aromatic hydrocarbon solvents such as toluene and xylene, aliphatic hydrocarbon solvents such as hexane, cyclohexane, methylcyclohexane and ethylcyclohexane, methanol, ethanol, isopropyl alcohol (IPA) and normal propyl alcohol Alcohol solvents such as 1-butanol, 2-butanol, isobutanol, tert-butanol, ethyl acetate, n-propyl acetate, isopropyl acetate, butyl acetate, butyl acetate, isobutyl acetate, sec-butyl acetate, esters of tert-butyl acetate, etc. Solvents, acetone, methyl ethyl ketone (MEK), methyl isobutyl ketone, ketone solvents such as cyclohexanone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, Glycol ether solvents such as glycol dimethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether and the like, and their esterified products are mentioned. Acetates selected from the group consisting of ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol Such as chromatography monoethyl ether acetate. Any resin may be used as long as it can dissolve the resin used for the anchor coating agent.

  A hardener can also be added to the anchor coating agent as required. For example, tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, hexamethylene diisocyanate, xylylene diisocyanate, isophorone diisocyanate, 1,3-bis (isocyanatomethyl) cyclohexane, 4,4'-dicyclohexyl diisocyanate and trimethylolpropane thereof Polyisocyanate-based curing agents such as trimers, isocyanurate bodies, burette bodies, modified bodies such as allophanate bodies and the like can be mentioned, and these can be used alone or in combination of two or more.

  The hydrophobized inorganic particles are preferably at least one selected from silica, talc, sericite, mica, kaolin, or a mixture thereof subjected to hydrophobization. Among them, hydrophobically treated silica and talc (hereinafter, also simply referred to as “treated silica” and “treated talc”, respectively) are more preferable. The non-adhesion layer is preferably formed of a coating liquid having a coating suitability including hydrophobicized inorganic particles.

  The hydrophobic treatment of the inorganic particles is not particularly limited as long as a hydrophobic group can be introduced into the inorganic particles, but from the viewpoint of water repellency, cost and safety, silane coupling treatment, silicone treatment and silazane treatment are preferable. A well-known silane coupling agent is used for a silane coupling process, and the process to an inorganic filler, such as a silica and a talc, the process by a dry method or a wet method is preferable. In general, a silane coupling agent is a silane compound having two different functional groups of an organic functional group and an alkoxy group in one molecule, and aminopropylmethoxysilane, aminopropyltriethoxysilane, ureidopropyltriethoxysilane, N- Aminosilane coupling agents such as phenylaminopropyltrimethoxysilane, N-2 (aminoethyl) aminopropyltrimethoxysilane, glycidoxypropyltrimethoxysilane, glycidoxypropyltriethoxysilane, glycidoxypropylmethyldiethoxy Epoxy silane coupling agents such as silane, glycidyl butyl trimethoxysilane, (3,4-epoxycyclohexyl) ethyltrimethoxysilane, mercaptopropyltrimethoxysilane, mercaptopropyl trie Mercaptosilane-based coupling agents such as toxisilane, methyltrimethoxysilane, octadecyltrimethoxysilane, phenyltrimethoxysilane, methacryloxypropyltrimethoxysilane, silane-based coupling agents such as imidazole silane and triazine silane, and the like are used. For example, a dry method is known in which inorganic particles are stirred at high speed with a stirrer, and a stock solution of a silane compound is uniformly dispersed and treated there. In a wet method, inorganic particles are immersed in a dilute solution of silane. Methods of processing are known. For the silicone treatment, silicone oil which is liquid at normal temperature is used. The silicone oil is not particularly limited as long as it has a polysiloxane structure, but dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane and the like are more preferable. The treatment is preferably carried out using 1 to 5% by weight of silicone oil, based on talc. Organosilazanes such as hexamethyldisilazane (HMDS), hexaphenyldisilazane, dimethylaminotrimethylsilane, trisilazane, cyclotrisilazane, 1,1,3,3,5,5-hexamethylcyclotrisilazane for silazane treatment The compounds are preferably used, and hexamethyldisilazane is more preferably used. For example, a method of spraying hexamethyldisilazane in a state in which inorganic particles such as silica and talc are made to flow, silica, talc and the like in an organic solvent such as alcohol and toluene, and further hexamethyldisilazane and water After the addition, it can be produced by a method of evaporating and drying water and an organic solvent with an evaporator. More specifically, HMDS-treated inorganic particles are prepared by placing inorganic particles in a Henschel mixer, spraying water and HMDS while stirring under a nitrogen atmosphere, heating and cooling, and crushing with a ball mill. it can.

  Silica (silicon dioxide) is abundant in natural products, synthetic products, or crystalline or amorphous, among which synthetic amorphous silica is preferred. Synthetic amorphous silica is roughly classified into wet method silica and dry method silica, but it has been subjected to hydrophobic treatment such as silane coupling treatment, silicone treatment (siloxane treatment), silazane treatment or composite treatment of these. For example. Examples of commercially available products include SIPERNAT series (manufactured by EVONIK Co., Ltd.), AEROSIL series (manufactured by Nippon Aerosil Co., Ltd.), WACKER HDK series (manufactured by Asahi Kasei Wacker Silicone Co., Ltd.), Leoroseal (manufactured by Tokuyama Co., Ltd.) and the like.

  Talc is a mineral consisting of magnesium hydroxide and silicate and is a kind of clay mineral. Talc itself, although untreated, has some degree of hydrophobicity, but is not sufficient for the water repellency and nonadhesion of the object of the present invention, and it is necessary to carry out a hydrophobic treatment. Hydrophobization treatment may be general, and may be treated with silica treatment, silicone treatment (siloxane treatment), silazane treatment, resin treatment, fatty acid treatment, silane coupling treatment, titanate treatment, or a composite treatment of these. For example, either one is fine. The treatment amount is preferably 0.01 to 50% by weight, and more preferably 0.05 to 30% by weight with respect to talc. If it is less than 0.01% by weight, the hydrophobicity is not sufficient, and if it is more than 50% by weight, it not only does not contribute to the treatment of talc but it becomes an impurity to inhibit water repellency. For example, the treated talc is obtained by spraying a 10% solution of silicone oil in methylene chloride to the talc so as to be 1 to 5% by weight of the silicone oil and calcining at 100 ° C. for 2 hours.

  The average particle diameter of the hydrophobized inorganic particles is preferably 50 μm or less, more preferably in the range of 0.001 to 50 μm, and further preferably in the range of 0.003 to 30 μm. preferable. When the particle size is 0.001 μm or less, the water repellency is hardly expressed, and when the particle size is larger than 50 μm, the abrasion resistance is inferior. The average particle size referred to here is a measured value by a laser method (manufactured by MICROTRAC 9320 × 100 Honeywell).

In the case of treated silica, it is preferably 50 μm or less, more preferably 30 μm or less.
In the case of treated talc, it is preferably 20 μm or less, more preferably 10 μm or less.

  Furthermore, it is preferable that the film thickness of the non-adhesion layer formed by coating the coating liquid containing the said hydrophobic-treated inorganic particle is 0.01-50 micrometers, and it is 0.01-30 micrometers. Is more preferred. If the film thickness is less than 0.01 μm, it is difficult to express water repellency, and if the film thickness is more than 50 μm, it is difficult to prepare by the gravure printing method.

  The coating liquid preferably contains hydrophobicized inorganic particles and alcohol and / or water. In particular, water, methanol, ethanol, isopropyl alcohol, normal propanol and the like are preferable from the viewpoint of water repellency. These may be used alone or in combination of two or more.

An additive can be used for the said coating liquid as needed. For example, viscosity modifiers, dispersants, antiblocking agents, waxes, fillers and the like can be mentioned. As viscosity modifiers, inorganic compounds such as silica, resin-based thickeners such as polyamide, as dispersants, polymeric resin dispersants, surfactants such as anionic, nonionic, cationic and amphoteric, Resin beads, such as a urethane resin, an acrylic resin, a nitrile resin, a polystyrene resin, or these mixtures etc. are mentioned. Antiblocking agents include inorganic pigments such as calcium carbonate, barium sulfate, silica, mica, montmorillonite, smectite, zeolite, kaolinite and the like. Examples of the wax include polyethylene, polypropylene, microcrystalline, carnauba, polytetrafluoroethylene and the like. As the filler, titanium oxide, calcium carbonate, barium sulfate, talc, zinc oxide, silica, mica, montmorillonite, smectite, zeolite, inorganic pigments such as kaolinite, polyethylene, polypropylene, microcrystalline, carnauba, polytetrafluoroethylene etc. Resin beads such as waxes, urethane resins, acrylic resins, nitrile resins and polystyrene resins, or mixtures thereof. The average particle size of the filler is preferably in the range of 0.01 to 50 μm.
The additive amount of the additive can be used in the range not to inhibit the water repellency, and the total amount of the additive is preferably 80% by weight or less, more preferably 70% by weight or less based on the hydrophobically treated inorganic particles. If the additive is more than 80% by weight with respect to the hydrophobized inorganic particles, the water repellency is reduced.

  The amount of hydrophobized inorganic particles in the coating liquid is preferably 0.1 to 50% by weight, and more preferably 1 to 40% by weight, in the coating liquid. More preferably, it is in weight percent. If the amount is less than 0.1% by weight, the water repellence of the non-adhesion layer coated with the coating liquid is difficult to be expressed, and if it is more than 50% by weight, the fluidity as the coating liquid is inferior and coating by the gravure printing method Not suitable for

In the non-adhesion layer formed by applying the coating solution, the coating amount (UC) of the coating solution is 0.02 g / m ² ≦ UC ≦ 1.5 g / m ² in solid content. It is preferable that 0.1 g / m ² ≦ UC ≦ 1.0 g / m ² is more preferable. When the amount is less than 0.02 g / m ² , the water repellency is difficult to be expressed, and when the amount is more than 1.5 g / m ² , the abrasion resistance of the non-adhesion layer is inferior.

Furthermore, it is preferable that the surface of the non-adhesive layer be the innermost layer. In the non-adhesive packaging container of the present invention, when the surface of the non-adhering layer is the innermost layer, food and articles are contained in the packaging container such that the non-adhering layer of the packaging container is in contact with food and articles. When stopped, the nonadherent layer exhibits nonadherence to the food or article. Here, that the non-adhesive layer of the non-adhesive packaging container is in contact with the food or article means that the surface of the non-adhesive packaging container having the non-adhesive layer is in contact with part or whole of the food. This has the effect of preventing or reducing the adhesion of the food or article to the non-adherent layer on the surface of the innermost layer of the packaging container even if the food or article is a particularly highly adhesive part. In addition, when the food or the article is taken out from the non-adhesive packaging container, there is also an effect that the appearance of the food or the article or the residue does not remain inside the packaging container and the commercial value is not reduced.
In addition, when the surface of the non-adhesion layer is the outermost layer, even when food or articles are contained in the packaging container and sealed, the exterior surface of the packaging container may come into contact with moisture, sugar, water droplets, etc. Since it is possible to prevent or reduce the adhesion of moisture, sugar and water droplets to the non-adhesion layer on the outermost surface, adhesion and dust such as moisture and sugar and water droplets is prevented or reduced. It has the effect of By this, there is also the effect that there is no cleanliness or dirt at the time of display, and the product value is not reduced.

  Furthermore, another base material layer may be provided on the side opposite to the non-adhesive layer side of the thermoplastic resin layer constituting the non-adhesive packaging container. The substrate layer is preferably at least one selected from paper, aluminum foil, plastic film or sheet, and a laminate thereof. The base material layer may be formed by laminating a thermoplastic resin or the like by a method such as dry lamination, non-solvent lamination or extrusion lamination, or a method of bonding through an adhesive or the like. It may be one. The thickness of the substrate layer is not particularly limited as long as there is no problem in printability, winding-up ability and the like, but 10 to 1000 μm is preferable.

  The said paper should just be suitable for printing, and publication printing paper, packaging printing paper, paperboard printing paper etc. are mentioned. Examples of the publication printing paper include uncoated paper such as high-quality paper and gravure paper, and coated paper such as art paper, coated paper, and finely coated paper. Examples of the packaging printing paper include pure white roll paper and bleached kraft paper. Moreover, as paperboard printing paper, coated or uncoated white balls, coated or uncoated Manila balls, polyethylene coated paper obtained by extruding polyethylene, etc. may be mentioned. Furthermore, synthetic paper such as polyethylene or polypropylene may be used.

  Examples of the plastic film include polyester films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyolefin films such as polyethylene, polypropylene and ethylene-vinyl acetate, polystyrene films, alcohols such as ethylene-vinyl alcohol and polyvinyl alcohol -Based film, polyamide film or barrier film with barrier layer interposed in the middle, polycarbonate film, polyacrylonitrile film, polyimide film, cellophane, moistureproof cellophane, PET film or polyamide film provided with a deposited layer of alumina, silica or the like Vapor-deposited polyester film or transparent vapor-deposited polyamide film, polyvinylidene chloride resin, polyvinyl chloride Alcohol resins, ethylene vinyl alcohol resins, polyacrylic acid resins, polyurethane resins, and various coating films coated with an isocyanate resin. These may be either stretched or unstretched, and one or more may be laminated. In addition, an oxygen absorbent may be contained. An appropriate one can be selected in consideration of mechanical strength and dimensional stability. Further, in order to improve the adhesion, it is possible to select one which has been subjected to corona treatment, low temperature plasma treatment, flame treatment, solvent treatment, coating treatment or the like in advance.

  Examples of plastic films that can be used for the dry lamination and non-solvent lamination include polyester films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyolefin films such as polyethylene, polypropylene and ethylene-vinyl acetate, polystyrene film, ethylene -An alcohol film such as vinyl alcohol and polyvinyl alcohol, a barrier film such as polyamide film or barrier film, polycarbonate film, polycarbonate film, polyacrylonitrile film, polyimide film, cellophane, moistureproof cellophane, PET film or polyamide film to alumina or the like Transparent vapor deposited polyester film or transparent vapor deposited layer provided with silica Various coating films coated with aluminum deposited film in which aluminum is deposited on polyamide film, PET film, polyamide film, polyethylene film or polypropylene film, etc., polyvinylidene chloride resin, polyvinyl alcohol resin, ethylene vinyl alcohol resin, polyacrylic acid resin, etc. Etc. These may be either stretched or unstretched, and one type or two or more types may be laminated. In addition, an oxygen absorbent may be contained. An appropriate one can be selected in consideration of mechanical strength and dimensional stability. In addition to plastic films, paper, processed paper, aluminum foil, etc. can also be used.

  Examples of resins that can be used for the extrusion laminate include polyethylene resins such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polypropylene resin, ethylene-vinyl acetate copolymer, ionomer resin, Ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, Examples of such resins include methylpentene polymers, acid-modified polyolefin resins obtained by modifying polyethylene and polypropylene with maleic acid and fumaric acid, and polystyrene resins. One or two or more of these resins may be laminated.

  A printing ink layer (hereinafter, also simply referred to as "printing ink") can be coated on the thermoplastic resin layer of the non-adhesive packaging container in one or more colors, and the opposite surface of the non-adhesive layer or the thermoplastic resin layer A printing ink layer can also be provided between the adhesive layers. By coating the thermoplastic resin layer with a printing ink layer, for example, company name, logo, character, product name, contents, component indication, scale, scale lines, notification of application method and campaign, eating method and using method , Date of birth, place of origin, information such as winning lot can be given.

  In addition, the space between the thermoplastic resin layer and the anchor coat layer does not have to be plain, and one or more printing ink layers can be coated on the thermoplastic resin layer as well.

  On the other hand, one or more colors of printing ink layer can also be applied to the base material layer, and a printing ink layer can be provided between the thermoplastic resin layer and the surface which does not fit or between the thermoplastic resin layer and the base material layer. . By applying a printing ink layer to the substrate layer, for example, company name, logo, character, product name, contents, component indication, scale, scale lines, notification of application method and campaign, eating method and using method, Information such as date of birth, place of origin, winning ticket can be given.

  A normal gravure ink can be used as the printing ink layer, and can be appropriately selected according to the thermoplastic resin layer and the base material layer. From the viewpoint of printability and versatility, gravure inks such as urethane resin, vinyl chloride-vinyl acetate copolymer resin, nitrification cotton, polyamide resin, acrylic resin, and chlorinated polypropylene resin are preferable, and one or two of these resins may be used. The gravure ink which combined the kind or more may be sufficient. Moreover, when using two or more colors of gravure ink, it is not necessary to be the ink of the same resin system, and the ink of another resin system can also be used suitably.

  As commercially available products, LG-NT, TPH, VESTA, LRC-NT, KCNT, SYNA-S, LAMREK (all manufactured by Tokyo Ink Co., Ltd.) and the like can be used.

  The form of the non-adhesive packaging container may be any of well-known forms used for packaging applications such as cups, trays, bottles, bricks, containers, boxes, cases, pans, covers, lids, caps and the like.

  Moreover, the non-adhesive packaging container may be used as the single form, but may be used in combination. That is, after storing or placing the food or the article in any form of container, another form of the container may be sealed or fitted, or temporarily storing or placing the food or the article, It may then be removed or removed. In any case, the non-adhesive layer in contact with the food or the article exhibits non-adhesiveness to the food or the article.

  In addition, it may be a non-adhesive packaging container in which the surface having the non-adhesive layer is an exterior surface. In this case, the content to be stored is not limited, and exhibits non-adhesion to dust, dirt and the like resulting from the contact of moisture, sugar, water droplets and the like on the exterior surface.

  Here, to store food and articles in a non-adhesive packaging container means, for example, foods and articles which are difficult to maintain their own shape such as gel, jelly, paste, paste, granules, powder and the like. There is a case in which the surface of the non-adhesive packaging container having the non-adhesive layer is partially or entirely brought into contact with the surface, or packed. Placing a food or article on a non-adhesive packaging container means, for example, a food or article having a non-adhesive layer of a non-adhesive packaging container, such as a solid or semi-solid form which easily retains its shape. Place the food or article partially or completely in contact with it, or place it in such a state that the food or the like does not come in contact with the non-adhered layer in the standing state. means. In the latter case, part or all of the food or article physically contacts the surface of the non-adhesive packaging container with the non-adherent layer due to transport, transport, transport, vibration, inclination, rollover, displacement, etc. Includes In the present specification, the non-adhesive layer is meant to be interpreted as a surface having the non-adhesive layer.

  The method for producing a non-adhesive packaging container according to the present invention comprises the steps of applying an anchor coating agent containing an unevenness imparting agent on at least one surface of a thermoplastic resin layer to form the anchor coating layer, and hydrophobicized inorganic It is preferable to include the process of coating the coating liquid containing particle | grains and forming the said non-adhesion layer.

  The thermoplastic resin layer is at least one selected from polyester resin, polyolefin resin, polystyrene resin, polyamide resin, polycarbonate resin, polyacrylonitrile resin, polyimide resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl alcohol resin, polyurethane resin It is preferable that it is a film or sheet containing one or a laminate of these. The film or sheet of the thermoplastic resin layer and the process of forming the laminate thereof are laminated by a known film forming process or sheet forming process, and are not particularly limited.

  The step of forming the anchor coat layer and the non-adhesion layer is preferably a step of forming the thermoplastic resin layer by known printing or coating, spraying, immersion or the like, and in particular, the coating step is more preferable. Examples of the application process include formation processes using silk screen printing, gravure printing, offset printing, flexo printing, roller coater, brush coating, spray, knife jet coater and the like. Among them, a coating process by gravure printing, flexographic printing or silk screen printing is preferably used in view of high quality and productivity, and in particular, a coating process by gravure printing using a multicolor gravure printing machine is preferable. It is set as the laminated body (Hereinafter, it is also only mentioned a "non-adhesive laminated body") by which the anchor-coat layer and the non-adhesion layer were laminated | stacked in this order on at least single side | surface of the said thermoplastic resin layer by these formation processes. More specifically, after the step of forming the thermoplastic resin layer laminated by the forming step described above, the step of forming the anchor coat layer and the nonadherent layer in this order by gravure printing is performed to manufacture a nonadherent laminate. However, after the step of forming the anchor coat layer and the non-adherent layer by gravure printing on one side of the base thermoplastic resin layer, another side is formed on the other side different from this. The non-adhesive laminate may be produced by the step of further laminating the substrate layer. Moreover, you may manufacture a non-adhesive laminated body by the process that a non-adhesion layer can be formed on both surfaces of a thermoplastic resin layer.

  Furthermore, the process of forming a printing ink layer is also preferably a known process such as printing or coating, spraying, immersion, etc., and in particular, the coating process is more preferable. Further, a coating process by gravure printing using a multicolor gravure printing machine is preferable. As a result, the printing ink layer can be freely provided, for example, on the opposite side of the nonadherent layer or between the thermoplastic resin layer and the nonadherent layer.

Since the anchor coat layer and the non-adhesion layer can be formed in multiple layers by these steps, the adhesion and non-adhesion properties of the thermoplastic resin layer and the non-adhesion layer can be easily controlled. That is, in the non-adhesive laminate using the conventional embossing and plasma chemical vapor deposition methods, the non-adhesive packaging container of the present invention is against the fact that the preparation of the non-adhesive layer is a separate step and is inefficient. Since the non-adhesive laminate used in this process is a forming process by gravure printing using a multicolor gravure printer, the printing ink layer, anchor coat layer, non-adhesive layer are continuously formed on the thermoplastic resin layer inline. Non-stick laminates can be produced easily and at low cost in a series of flows (one pass). Of course, there are cases where continuous formation can not be performed inline due to the restrictions of the specifications of the gravure printing machine, the printing environment, equipment, etc. In this case, the formation can be performed offline (outline). Moreover, it is preferable to apply | coat an anchor coat layer only to the part which provides a nonadhesion layer.
The adhesion of the nonadherent layer means whether or not the surface having the nonadherent layer and a part or the entire surface of the food or the article are easily adhered. The nonadhesion control means that the adhesion between the surface having the nonadhesion layer and the surface or the entire surface of the food or the article can be controlled.

  Furthermore, in the process of forming a non-adhering layer by gravure printing, with 100% dot area ratio, the area ratio may be lowered due to excessive non-adhesiveness or demand for non-adhesiveness to food or articles. By adjusting the plate depth or adjusting the dilution rate, the adhesion between the non-adherent layer and the food or article can be easily controlled. Furthermore, in addition to adjustment of dot area ratio and plate depth, characters (eg, manufacturer name, brand name, product name, symbols etc.) and patterns (eg, mark, mark, designed pattern etc.) etc. (By forming a portion without a non-adhesion layer), there is also an effect that the “punched” portion adheres to a food or an article, and the appropriate adhesion is maintained.

It is preferable that the non-adhesive packaging container of this invention consists of the process of shape | molding including the said non-adhesive laminated body.
The forming step may be any of the well-known container forming steps used for packaging applications such as cups, trays, bottles, bricks, containers, boxes, cases, pans, covers, lids, caps and the like. In particular, container forming by a sheet forming process is preferable.

  It is preferable that the sheet forming process is any forming process of pressure forming, vacuum forming, vacuum pressure forming, press forming, three-dimensional laminate forming or opposed liquid pressure forming. Among them, a forming step by pressure forming, vacuum forming, vacuum pressure forming, or press forming is more preferable.

  Furthermore, after the step of containing or placing the food or the article in the container of any form formed by the forming step, the step of sealing or fitting in a container of another form may be included. Alternatively, the food or article may be temporarily stored or placed and then removed or removed.

  The storing step or mounting step in the non-adhesive packaging container may be a step of housing or mounting via a human hand, but a step of housing or mounting using a machine such as an automatic device is also possible. Good. These steps may be appropriately selected depending on the type, shape and size of the food, the number, the packaging container to be stored or placed, equipment, the environment, and the like. Furthermore, the sealing process may be performed by a known sealing process such as a heat sealing, a bonding or bonding process with an adhesive, or a capping process, but a heat sealing process is more preferable. The fitting process may be performed by a known fitting process. Either of the steps may be manual sealing and fitting steps, or may be sealing and fitting steps using a machine such as an automatic device.

  Preferred food for the non-adhesive packaging container of the present invention is dumpling, sweet potato, Chinese bun, sweet potato, dumpling, salmon, pudding, caramel, castella, short cake, cheese cake, hot cake, roll cake, madeleine, bermkuchen, Financiers, muffins, waffles, mont blancs, cream puffs, donuts, chocolate, caramel, starch syrup, cream, jam, butter, margarine, ice cream, yogurt, jelly, honey, black nectar, candy, gummy, gelatin, tart, pie, candy, Kusanagi, Oofuku, Daifuku, Zenzai, Anmitsu, Honey Beans, Yorozu, Chiaki, Chiaki, Donto, Dorayaki, Natto, Noodles, Bread, Steamed Bread, Sandwich, Pizza, Cheese, Cream Cheese, Cooked Rice, Sushi, Gyudon, Pig Chicken bowl, chicken bowl, cutlet bowl, Chinese bowl, tea Steamed, Miso, Takoyaki, Okonomiyaki, Yakiniku, Yakitori, Teriyaki, Takiyaki, Boiled Fish, Braised Fish, Braised Chicken, Spaghetti, Omelet, Omerice, Omelet, Scrambled Egg, Boiled Egg, Hot Spring Egg, Gratin, Doria, Risotto, Curry, stew, meat sauce, hamburger meatball, wine sausage, frankfurt, ham, bacon, wonton, spring roll, mapo tofu, shrimp chili, sweet and sour pork, chopped vegetables, spinach meat, crab ball, anchovy jakoba, kimchi, chijimi, Potato salad, egg salad, macaroni salad, vermicelli salad, mayonnaise, soy sauce, sauce, ketchup, mustard, chili oil, miso pickling, pickled pickled mackerel, pickled wasabi pickled, pickled pickled mackerel, pickled pickled mackerel, pickled pickled mackerel, salted fish, salted mackerel, seaweed, seaweed, seaweed, ramen Also contains liquid sauce such as liquid sauce, soup, soup and so on, including moisture and sugar It is preferable at least one selected from the.

  Preferred articles for the non-adhesive packaging container of the present invention include pet food, solid wax, cream, milk, lotion, cosmetic solution, shampoo, rinse, conditioner, hair dye, whitening cosmetic, cosmetic oil, wet tissue, It is at least one selected from those including water such as wet sheet, kneading, bath salt, ointment, shaving gel, sunscreen, culture soil, and humus.

  Each composition such as the coating liquid of the non-adhering layer, printing ink, anchor coating agent uniformly dissolves or disperses a pigment, a resin, a roughening agent, hydrophobic treated inorganic particles, various additives and the like in a solvent Thus, they can be produced by known methods. Dissolution or dispersion can be performed with various stirrers or dispersions such as dissolver, roll mill, ball mill, bead mill, sand mill, attritor, paint shaker, agitator, Henschel mixer, colloid mill, pearl mill, ultrasonic homogenizer, wet jet mill, kneader, homo mixer, etc. Machine can be used. These devices may be used alone or in combination of two or more. When air bubbles or coarse particles are contained in each composition, it is preferable to remove them using a known filter, centrifuge or the like in order to reduce printability and print quality.

  The viscosity of each of the above compositions is not particularly limited as long as it does not affect printing. It is preferable that it is 10-1,000 mPa * s at 25 degreeC, when the manufacture aptitude of each composition, handling, etc. are considered.

  The viscosity can be measured using a commercially available viscometer such as a Brookfield viscometer.

  Each composition described above can be coated as it is, but depending on the coating conditions and the coating effect, the desired viscosity can be obtained by diluting with a dilution solvent with Zahn cup # 3 (manufactured by Rikasha Co., Ltd.) It can be adjusted to use. The viscosity in this case is preferably 10 to 40 seconds at 25 ° C.

  The dilution solvent may be any one as long as it can be used by adjusting the viscosity of each composition, and examples thereof include organic solvents and water, and commercially available ones can also be used. Commercially available products include TA52 (alcohol solvents), WA704 (alcohol solvents), PU 515 (non-toluene solvents), SL9155 (non-toluene solvents), AC 372 (non-toluene solvents), TH-12 (toluene-containing solvents) Solvent) (all are Tokyo Ink Co., Ltd. product) etc. are mentioned.

  The non-adhesive packaging container of the present invention will be described by way of examples, but is not limited thereto.

  FIG. 1 shows an example in which the contents 3 are placed on the non-adhesive packaging container 1 and sealed with a lid 2. In this case, the lower surface of the content 3 is a portion showing particularly strong adhesion, and this is an example in which the non-adhesive packaging container of the present invention is applied to the portion in contact with this.

  FIG. 2 shows an example in which the content 3 is placed on the non-adhesive packaging container 1 and housed together with the non-adhesive packaging container 1 and the content 3 in the plastic bag 4 and sealed. In this case, the lid 2 as shown in FIG. 1 may or may not be present.

  FIG. 3 shows an example in which the contents 31 are placed on the tray 5 and the non-adhesive packaging container 1 is fitted and sealed so as to cover the tray 5 and the contents 31. In this case, the tray 5 is also preferably the non-adhesive packaging container of the present invention. In this case, the non-adhesive packaging container of the present invention is an example in which the upper surface of the content 31 is a portion showing particularly strong adhesion and which may come in contact with the portion.

  EXAMPLES The present invention will be more specifically described below by showing Examples and Comparative Examples, but the present invention is not limited thereto. In Examples and Comparative Examples, parts represent parts by weight and% represents weight%.

[Preparation of non-adhesion layer coating solution]
Non-adherent layer coating solution 1 (Production Example 1)
To 90 parts of ethanol, 10 parts of hydrophobized dry silica (average particle diameter 0.2 μm, WACKER HDK H18, manufactured by Asahi Kasei Wacker Silicone Co., Ltd.) is added while stirring, and non-adhesion layer coating liquid 1 is added. Made.

Non-adhesion layer coating solution 2 (Production Example 2)
10 parts of wet method silica (average particle diameter 6.2 μm, SIPERNAT D10, manufactured by EVONIK) having been hydrophobized was added to 90 parts of ethanol while stirring to prepare a non-adhesion layer coating solution 2.

Non-adhesion layer coating solution 3 (Production Example 3)
10 parts of hydrophobized talc ¹⁾ was added to 90 parts of ethanol while stirring to prepare a non-adhesion layer coating liquid 3.
1): A solution of 10% solution of silicone oil (KF-96-50cs, Shin-Etsu Chemical Co., Ltd.) in 10% methylene chloride is sprayed to 3% by weight of talc, and calcinated at 100 ° C. for 2 hours, Surface-coated talc (average particle size 6 μm)

Non-adhesion layer coating solution 4 (Production Example 4)
Add 8 parts of hydrophobized talc and 2 parts of non-hydrophobicized wet silica (average particle diameter 6.2 μm, SIPERNAT 383DS, manufactured by EVONIK) to 90 parts of ethanol while stirring and do not adhere Layer coating solution 4 was prepared.

Non-adherent layer coating solution 5 (Production Example 5)
10 parts of wet method silica (average particle diameter 6.2 μm, SIPERNAT 383DS, manufactured by EVONIK) not subjected to hydrophobization treatment was added to 90 parts of ethanol while stirring to prepare a non-adhesion layer coating solution 5.

Non-adhesion layer coating solution 6 (Production Example 6)
10 parts of non-hydrophobicized talc (average particle diameter 7 to 11 μm, JA-46R, manufactured by Asada Shoko Co., Ltd.) is added to 90 parts of ethanol while stirring to prepare non-adhesion layer coating liquid 6 did.

[Preparation of anchor coating agent]
Anchor coat agent 1 (Production Example 7)
10 parts of an acrylic resin bead (average particle diameter 10 μm) is added to 50 parts of a polyester resin based solution (solid content 30%, Tg 5 ° C.), 40 parts of n-propyl acetate is added while stirring, and an anchor coat agent 1 was produced.

Anchor coat agent 2 (Production Example 8)
To 60 parts of an acrylic resin solution (solid content 30%, Tg 50 ° C.), add 10 parts of acrylic resin beads (average particle diameter 10 μm), and add 10 parts of ethyl acetate and 20 parts of isopropyl alcohol while stirring. Anchor coat agent 2 was produced.

Anchor coat agent 3 (Production Example 9)
5 parts of acrylic resin beads (average particle diameter 8 μm) are added to 40 parts of polyester resin based solution (solid content 30%, Tg 20 ° C.), and 25 parts of n-propyl acetate and 30 parts of methyl ethyl ketone are added while stirring , And anchor coating agent 3 were produced.

Anchor coat agent 4 (Production Example 10)
5 parts of acrylic resin beads (average particle diameter 0.8 μm) are added to 40 parts of a polyester resin solution (solid content 30%, Tg 20 ° C.), and 25 parts of n-propyl acetate and 30 parts of methyl ethyl ketone are added while stirring Then, anchor coating agent 4 was produced.

Anchor coat agent 5 (Production Example 11)
20 parts of ethyl acetate and 20 parts of isopropyl alcohol were added to 60 parts of an acrylic resin-based solution (solid content: 30%, Tg 50 ° C.) while stirring, to prepare anchor coating agent 5.

Example 1
Anchor coat agent 1 (abbreviation: AC1) obtained in Production Example 7 in a first unit on a polypropylene sheet (abbreviation: PP) having a thickness of 0.6 mm using a five-color gravure printing machine, a second unit Then, the non-adhesion layer coating solution 1 (abbreviation: non-adhesion layer 1) obtained in Production Example 1 was printed and wound up to prepare a non-adhesive laminate 1. At this time, anchor coating agent 1 is diluted with SL9155 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 0.9 g / m ² and 0.2 g / m ² . By this, the non-adhesive laminated body 1 became a laminated body of the structure of "PP / AC1 / non-adhesive layer 1."

(Example 2)
Anchor coat agent 2 (abbreviation: AC2) obtained in Production Example 8 in a first unit on a polystyrene sheet (abbreviation: PS) having a thickness of 0.5 mm using a five-color gravure printing machine, a second unit Then, the non-adhesion layer coating solution 1 obtained in Production Example 1 was printed and wound up to prepare a non-adhesive laminate 2. At this time, anchor coating agent 2 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amount was 1.0 g / m ² and 0.1 g / m ² . Thereby, the non-adhesive laminate 2 became a laminate of the configuration of "PS / AC2 / non-adhesive layer 1".

(Example 3)
Non-adhesive laminate 3 was produced under the same conditions as in Example 1 except that anchor coat agent 1 was changed to anchor coat agent 3 (abbreviation: AC3) obtained in Production Example 9. At this time, anchor coating agent 3 is diluted with SL9155 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.1 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 3 became a laminate of the configuration of "PP / AC3 / non-adhesive layer 1".

(Example 4)
The non-adhesive laminate 4 was produced under the same conditions as in Example 1 except that the anchor coat agent 1 was changed to the anchor coat agent 4 (abbreviation: AC4) obtained in Production Example 10. At this time, anchor coating agent 4 is diluted with SL9155 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.1 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 4 became a laminate of the "PP / AC4 / non-adhesive layer 1" configuration.

(Example 5)
Non-adhesive laminate 5 was prepared under the same conditions as in Example 1 except that non-adhesive layer coating solution 1 was changed to non-adhesive layer coating solution 2 (abbreviation: non-adhesive layer 2) obtained in Production Example 2. did. At this time, anchor coating agent 1 was diluted with SL9155 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 2 was diluted with TA52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.1 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 5 became a laminate of the configuration of "PP / AC1 / non-adhesive layer 2".

(Example 6)
A non-adhesive laminate 6 was produced under the same conditions as in Example 2 except that the non-adhesive layer coating solution 1 was changed to the non-adhesive layer coating solution 2 obtained in Production Example 2. At this time, anchor coating agent 2 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 2 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.0 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 6 became a laminate of the configuration of “PS / AC2 / non-adhesive layer 2”.

(Example 7)
Non-adhesive laminate 7 was produced under the same conditions as in Example 2 except that non-adhesive layer coating solution 1 was changed to non-adhesive layer coating solution 3 (abbreviation: non-adhesive layer 3) obtained in Production Example 3. did. At this time, anchor coating agent 2 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 3 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.0 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 7 became a laminate of the configuration of "PS / AC2 / non-adhesive layer 3".

(Example 8)
Non-adhesive laminate 8 was prepared under the same conditions as in Example 2 except that non-adhesive layer coating solution 1 was changed to non-adhesive layer coating solution 4 (abbreviation: non-adhesive layer 4) obtained in Production Example 4 did. At this time, anchor coating agent 2 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 4 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 1.0 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 8 became a laminate of the configuration of “PS / AC2 / non-adhesive layer 4”.

(Example 9)
Using the first color unit, the anchor coating agent 2 and the second unit print the non-adhesion layer coating liquid 3 on a 20-μm thick biaxially oriented polystyrene sheet (abbreviation: OPS) using a five-color gravure printing machine The non-adhesive laminate 9 was produced by winding up, then laminating a 1 mm thick polystyrene paper (abbreviation: PSP) on the opposite side of the non-adhesive layer and thermally laminating it. At this time, anchor coating agent 2 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 3 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amount was 1.1 g / m ² and 0.1 g / m ² . Thereby, the non-adhesive laminate 9 became a laminate of the configuration of “PSP / OPS / AC2 / non-adhesive layer 3”.

(Example 10)
The same conditions as in Example 1 were used except that a 0.6 mm thick polypropylene sheet was changed to a 0.7 mm thick polypropylene / ethylene-vinyl alcohol copolymer coextruded multilayer sheet (abbr .: PP / EVOH). An adhesive laminate 10 was produced. At this time, anchor coating agent 1 is diluted with SL9155 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amounts were 0.9 g / m ² and 0.3 g / m ² . Thereby, the non-adhesive laminate 10 became a laminate of the configuration of “PP / EVOH / AC1 / non-adhesive layer 1”.

(Comparative example 1)
Non-adhesive laminate 11 was prepared under the same conditions as in Example 1 except that non-adhesive layer coating solution 1 was changed to non-adhesive layer coating solution 5 (abbreviation: non-adhesive layer 5) obtained in Production Example 5 did. At this time, anchor coating agent 1 is diluted with SL9155 (non-toluene type solvent, made by Tokyo Ink Co., Ltd.), non-adhesion layer coating liquid 5 is diluted with TA52 (alcohol type solvent, made by Tokyo Ink Co., Ltd.), The coating amount was 1.0 g / m ² and 0.1 g / m ² . By this, the non-adhesive laminated body 11 became a laminated body of the structure of "PP / AC1 / non-adhesive layer 5."

(Comparative example 2)
Non-adhesive laminate 12 was prepared under the same conditions as in Example 1 except that non-adhesive layer coating solution 1 was changed to non-adhesive layer coating solution 6 (abbreviation: non-adhesive layer 6) obtained in Production Example 6. did. At this time, anchor coating agent 1 is diluted with SL9155 (non-toluene type solvent, made by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 6 is diluted with TA52 (alcohol type solvent, made by Tokyo Ink Co., Ltd.), The coating amounts were 1.1 g / m ² and 0.2 g / m ² . Thereby, the non-adhesive laminate 12 became a laminate of the configuration of “PP / AC1 / non-adhesive layer 6”.

(Comparative example 3)
The non-adhesive laminate 13 was produced under the same conditions as in Example 2 except that the anchor coat agent 2 was changed to the anchor coat agent 5 (abbreviation: AC5) obtained in Production Example 11. At this time, anchor coating agent 5 is diluted with AC 372 (non-toluene type solvent, manufactured by Tokyo Ink Co., Ltd.), and non-adhesion layer coating liquid 1 is diluted with TA 52 (alcohol type solvent, manufactured by Tokyo Ink Co., Ltd.). The coating amount was 1.1 g / m ² and 0.1 g / m ² . Thereby, the non-adhesive laminate 13 became a laminate of the configuration of “PS / AC5 / non-adhesive layer 1”.

(Comparative example 4)
The non-adhesive laminate 14 was produced under the same conditions as in Example 1 except that the anchor coating agent was not used. At this time, the non-adhesion layer coating liquid 1 was diluted with TA 52 (alcohol solvent, manufactured by Tokyo Ink Co., Ltd.), and the coating amount was 0.1 g / m ² . Thereby, the non-adhesive laminate 14 became a laminate of the “PP / non-adhesive layer 1” configuration.

(Comparative example 5)
A silicone resin (KF-96H-30 Man cs, Shin-Etsu Chemical Co., Ltd. product, abbreviation: silicone) is applied to a PP sheet having a thickness of 0.6 mm, and aged for 3 days at 40 ° C. Body 15 was produced. At this time, the film thickness of the silicone resin was 0.3 μm. Thereby, the non-adhesive laminate 15 became a laminate of the "PP / silicone" configuration.

  The water repellency, non-adhesiveness, and durability of the non-adhesive laminates of Examples 1 to 10 and Comparative Examples 1 to 5 were evaluated, and are shown in Table 1.

<Water repellant>
The contact angle was measured for the nonadherent layer of the nonadherent laminate. For measurement, a portable contact angle meter PCA-1 (manufactured by Kyowa Interface Science Co., Ltd.) was used. The larger the measured value, the higher the water repellency and the better.
◎: 130 ° or more, :: less than 130 ° 110 ° or more, Δ: less than 110 ° 90 ° or more, x: less than 90 °.

<Non-adhesiveness>
The non-adhesive laminates of Examples 1 to 10 and Comparative Examples 1 to 5 are formed into a tray-like non-adhesive packaging container (1 in FIG. 1) by sheet molding (vacuum molding), and Shumai (trade name: PREPLY) Place shrimp shrimp (made by Ajinomoto Frozen Foods Co., Ltd.) (3 in Fig. 1), place it horizontally in the refrigerator, take it out from the refrigerator after 24 hours, and slowly lift it up. The adhesion state of the shoots on the contact surface (non-adhesion layer surface) of the tray-like non-adhesion packaging container was visually observed. The less adhesion, the better the non-adhesion.
◎: not attached at all, :: slightly attached, Δ: considerably attached, x: almost attached.

<Durability>
Place the shyumai (brand name: pre-fried shrimp shuimai, Ajinomoto Frozen Foods Co., Ltd.) in the tray-like non-adherent packaging container prepared in the same manner as the non-adhesion evaluation installed horizontally, and dry the shyumai The cover was put on for prevention, and it was left still in the refrigerator for 3 days. Thereafter, the container was removed from the inside of the refrigerator, the cover was removed, and further, when the shoot was slowly lifted, the adhesion state of the shoot on the contact surface (non-adhered layer surface) of the shoot and the container was visually observed. The term “excellent in durability” means that even when the content is in contact with the non-adhesive layer of the non-adhesive packaging container for a long time, the non-adhesive performance does not deteriorate and continues. Therefore, it is considered that the non-adhesive layer of the non-adhesive packaging container and the non-adherent layer of the non-adhesive packaging container have excellent durability.
◎: not attached at all (excellent in durability), x: evaluated in two stages of attached as it is (insufficient durability).

<Overall evaluation>
Of the water repellency, non-adhesion and durability, all those with an evaluation result of "o" are "o" as an overall evaluation, and those with an evaluation result of either "o" or "o" are "o" as a general evaluation. The thing with one or more "△" was made into "△" as comprehensive evaluation, and the thing with "X" even as one was taken as "x" as comprehensive evaluation.

  According to Table 1, it is clear that the non-adhesive laminates of Examples 1 to 10 are superior in the balance of water repellency, non-adhesiveness, and durability to the non-adhesive laminates of Comparative Examples 1 to 5. Comparative example 1 or 2 which is an example of the non-adhesive laminated body using the silica or the talc which has not been hydrophobized is inferior in non-adhesiveness. In addition, Comparative Example 3, which is an example using an anchor coating agent containing no filler, is inferior in non-adhesiveness. In Comparative Example 4 which is an example in which the anchor coating agent is not used, most of the shoots adhere to the tray-like non-adherent packaging container, and the effect of the non-adherent layer does not appear. The comparative example 5 which is an example which apply | coated the silicone resin which is a prior art example is not effective in non-adhesiveness.

According to the non-adhesive packaging container of the present invention, it has sufficient non-adhesiveness and can be easily manufactured at low cost, so it can be effectively used as a non-adhesive packaging container to which food and articles do not adhere. . In addition, depending on the food or article or application or form, the nonadhesion requirement may differ, and in such a case, the dot area ratio of the gravure plate may be reduced, the plate depth may be adjusted, or the dilution rate may be adjusted. By doing this, the adhesion between the non-adhesive packaging container and food or articles can be easily controlled. In addition, by providing a printing ink layer on the thermoplastic resin layer, it can be used for displaying information for customers such as campaigns, methods of eating food, methods of using articles, and winning tickets.
Moreover, since the non-adhesive laminate of the present invention can be coated by a gravure printing method, it is not limited to the above food and articles applications, but it can be used for living goods such as double feathers, umbrellas, shoes, hoods, etc., goodwill, table cloth, shower curtains Home appliances such as mirrors, kitchen sinks and washbasins, electronic parts such as display panels such as mobile phones and smartphones, refrigerators, washing machines, microwave ovens, rice cookers, household appliances such as electric pots, concrete and bricks, wall materials Industrial materials such as flooring, roofing materials, ceiling materials, cloths and glasses, clothing such as aprons, uniforms and outdoor wear, sports equipment such as skis, snowboards and goggles, camping equipment such as tents and tarps, cameras and projectors For articles used in an environment where water droplets may adhere, such as optical products such as lenses for glasses It can be widely applied.

1 non-adhesive packaging container 2 lid 3, 31 contents 4 plastic bag 5 tray

Claims (3)

In a method for producing a non-adhesive packaging container comprising a non-adhesive laminate in which an anchor coat layer and a non-adhesive layer are laminated in this order on at least one side of a thermoplastic resin layer comprising a film or sheet and a laminate thereof ,
The anchor coat layer is coated with an anchor coat agent containing acrylic resin beads and one selected from acrylic resins or polyester resins having a glass transition point (Tg) of 5 ° C. or more and 50 ° C. or less. Layers formed by
The non-adhesive layer is a layer formed by applying a coating liquid containing hydrophobized inorganic particles and alcohol and / or water,
The thermoplastic resin layer comprising the film or sheet and a laminate thereof is a polyester resin, a polyolefin resin, a polystyrene resin, a polyamide resin, a polycarbonate resin, a polyacrylonitrile resin, a polyimide resin, a polyvinyl chloride resin, a polyvinylidene chloride resin, polyvinyl alcohol resins, ethylene-vinyl alcohol resin is at least one selected from among polyurethane resin,
Forming an anchor coat layer;
The step of forming a non-adhesion layer is a step of forming in this order ,
And the said process of forming the said anchor coat layer is a coating process by gravure using one unit of a multicolor gravure printer,
The process is non-adherent packaging container producing method, wherein said is another coating step by gravure printing using the one unit of multi-color gravure printing machine for forming the non-adherent layer.   The said hydrophobized inorganic particle is at least one selected from those obtained by hydrophobizing silica, talc, sericite, mica, kaolin, or a mixture thereof. Method of manufacturing non-adhesive packaging container. The non-adhesive package according to claim 1 or 2 , wherein the thermoplastic resin layer comprising the film or sheet and the laminate thereof is at least one selected from polypropylene resin and polystyrene resin. How to make a container.

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